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DigInfo TV: Tokyo Metropolitan University develops device which scans and plays handwritten sheet music in real time (Video)

Tokyo, Nov 9, 2012 - (JCN Newswire) - Diginfo TV ( www.diginfo.tv ) has posted a video on the Gocen device that scans and plays handwritten sheet music in real time. It is being developed by a group at the Tokyo Metropolitan University led by Assistant Professor Tetsuaki Baba.

"First, the system looks at the stave, then at the notes, then at the position of the notes, to determine the high notes. In addition, it directly reads words such as piano or guitar. The computer automatically recognizes them, and changes the instrument. Also, for example, if this melody is in F minor, rather than C major, when the system reads the letters Fm, it has the ability to add four flats."

The sheet music image is analyzed using the OpenCV library in combination with a unique algorithm. While the play head is above a note it will continue to sound that key, and in the case of stringed instruments, if you move it up and down it can make the pitch fluctuate. Also, the size of the notes determines the volume level and it can handle chords as well.

"This idea arose when we were talking with music publishing companies. Until now, sheet music was really only used by placing it on a stand to play an instrument. But it could be played by computer in real time, and given various expressions. We think a system like this will make it easier for children and beginners to learn about musical notation."

"Lots of people use computers to compose music, but it's been found through research that paper works well at the initial stage, for deciding what kind of composition, or what kind of melody. In that regard, I feel that this system is very effective as a composition support system."

Diginfo TV: http://www.diginfo.tv/v/12-0205-r-en.php
Diginfo News: http://www.youtube.com/watch?v=nuqWSP7e3X8&feature=plcp

About DigInfo TV

DigInfo TV is a Tokyo-based online video news site, dedicated to the coverage of cutting edge technology, research and products from Japan. Our dedicated team search for technology and research that larger media organizations are unable to cover, allowing for smaller Japanese companies and research institutions to gain recognition in the English speaking media outside of Japan. Visit DigInfo TV at www.diginfo.tv or www.youtube.com/user/Diginfonews.



Source: DigInfo TV

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